1864634113 has 2 divisors, whose sum is σ = 1864634114. Its totient is φ = 1864634112.

The previous prime is 1864634089. The next prime is 1864634209. The reversal of 1864634113 is 3114364681.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1183841649 + 680792464 = 34407^2 + 26092^2 .

It is an emirp because it is prime and its reverse (3114364681) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1864634113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1864634813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 932317056 + 932317057.

It is an arithmetic number, because the mean of its divisors is an integer number (932317057).

Almost surely, 2^1864634113 is an apocalyptic number.

It is an amenable number.

1864634113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1864634113 is an equidigital number, since it uses as much as digits as its factorization.

1864634113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 37.

The square root of 1864634113 is about 43181.4093447632. The cubic root of 1864634113 is about 1230.8294387875.

Adding to 1864634113 its reverse (3114364681), we get a palindrome (4978998794).

The spelling of 1864634113 in words is "one billion, eight hundred sixty-four million, six hundred thirty-four thousand, one hundred thirteen".